Altitudes in Triangles
Finding an Altitude
1) Find the Perpendicular line tool
2) Click on a side of the triangle and then click on it's OPPOSITE vertex.
3) Perform this task on each of the 3 sides of the triangle.
4) What do you notice about all 3 Altitudes?
Altitudes
This point at which each altitude intersects is called the Orthocenter
Now move point A so that it is an Obtuse Triangle, and then a Right Triangle. What do you notice about the Orthocenter? How does it move?
Where is the Orthocenter located on a right triangle?